Merge cell functions

I would love to have the feature to merge cells, and put bold lines under text boxes like as seen below.

Please add merge! One example use case is wanting to have header rows to segment sections of a sheet. Not being able to merge creates a number of issues, such as:

1. Long header titles either have to wrap, or the column has to be disproportionately stretched to be visible.
2. Conditional formatting rules inadvertently impact the blank cells in header rows (e.g., color cell when blank). This forces a workaround of putting invisible text in the blank cells to avoid misapplied rules.
3. Lack of ability to organize data that needs to span multiple columns or headers that need to cover multiple columns.

Smartsheet: If there is a reason that merge isn't on the roadmap, can you please explain? Otherwise, all of us users are sitting here not understanding why this seemingly basic request has been disregarded for years.

I'm not usually one to jump on the bandwagon but I would also really appreciate the ability to merge cells,

Cheers

Cell merging is an absolute must. Hopefully, this simple function can be introduced soon

Would love the ability to merge cells -OR- Add a row for a heading to break up the spreadsheet.